Home / 131,891.81-182,010.45-71,464.09

Finding the Fourth Proportional to 131,891.81, 182,010.45 and 71,464.09

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Solution

The fourth proportional to 131,891.81, 182,010.45 and 71,464.09 is: 98,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,891.81 : 182,010.45 = 71,464.09 : x
  2. Step 2: Convert to fraction form
    131,891.81/182,010.45 = 71,464.09/x
  3. Step 3: Cross multiply
    131,891.81x = 182,010.45 × 71,464.09
  4. Step 4: Simplify right side
    131,891.81x = 13,007,210,822.42
  5. Step 5: Solve for x
    x = 13,007,210,822.42/131,891.81
  6. Step 6: Final answer
    x = 98,620.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.